CHEMISTRY UNit 4 Bonding PRE/POST Test

All of the elements in the same group (column) have EQUAL numbers of _______.

• Protons
• Neutrons
• Electrons
• Valence Electrons

Nitrogen will ____ electrons when forming an ionic bond.

• gain 1
• lose 1
• gain 3
• lose 3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does calcium have?

• 2
• 4
• 6
• 7

Tags

NGSS.HS-PS1-1

Ionic bonds form between metals and ____.

• metalloids
• metals
• nonmetals
• noble gases

Which type of bond has one pair of electrons shared between atoms?

• ionic
• single covalent
• metallic
• double covalent

Which bond is the strongest bond?

• single covalent bond
• double covalent bond
• triple covalent bond
• quadruple covalent bond

What is a valence electron?

• The sum of neutrons and protons.
• The number of electrons in the outermost energy level
• electrons closest to the nucleus
• electrons unbonded to a nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Compared to ionic compounds, molecular or covalent compounds generally have...

• stronger chemical bonds
• poor conductivity
• a high melting point
• lower densities

A Nitrogen molecule (N₂) has one triple bond. How many electrons do the nitrogen atoms share?

• 2

• 3

• 4

• 6

This could be the dot diagram of

• Ne
• H
• C
• F

Tags

NGSS.HS-PS1-1